AMD EPYC 7402 vs AMD Ryzen 9 7900

Last updated: 2024-02-02

CPU comparison with benchmarks


AMD EPYC 7402		AMD Ryzen 9 7900
CPU comparison AMD EPYC 7402 or AMD Ryzen 9 7900 - which processor is faster? In this comparison we look at the differences and analyze which of these two CPUs is better. We compare the technical data and benchmark results. The AMD EPYC 7402 has 24 cores with 48 threads and clocks with a maximum frequency of 3.35 GHz. Up to GB of memory is supported in 8 memory channels. The AMD EPYC 7402 was released in Q3/2019. The AMD Ryzen 9 7900 has 12 cores with 24 threads and clocks with a maximum frequency of 5.40 GHz. The CPU supports up to 128 GB of memory in 2 memory channels. The AMD Ryzen 9 7900 was released in Q1/2023.

AMD EPYC (129)	Family	AMD Ryzen 9 (35)
AMD EPYC 7002 (24)	CPU group	AMD Ryzen 7000 (14)
2	Generation	6
Rome (Zen 2)	Architecture	Raphael (Zen 4)
Desktop / Server	Segment	Desktop / Server
--	Predecessor	AMD Ryzen 9 5900
--	Successor	--

CPU Cores and Base Frequency The AMD EPYC 7402 has 24 CPU cores and can calculate 48 threads in parallel. The clock frequency of the AMD EPYC 7402 is 2.80 GHz (3.35 GHz) while the AMD Ryzen 9 7900 has 12 CPU cores and 24 threads can calculate simultaneously. The clock frequency of the AMD Ryzen 9 7900 is at 3.70 GHz (5.40 GHz).
AMD EPYC 7402	Characteristic	AMD Ryzen 9 7900
24	Cores	12
48	Threads	24
normal	Core architecture	normal
Yes	Hyperthreading	Yes
No	Overclocking ?	Yes
2.80 GHz	Frequency	3.70 GHz
3.35 GHz	Turbo Frequency (1 Core)	5.40 GHz
3.20 GHz	Turbo Frequency (All Cores)	4.70 GHz

Artificial Intelligence and Machine Learning Processors with the support of artificial intelligence (AI) and machine learning (ML) can process many calculations, especially audio, image and video processing, much faster than classic processors. Algorithms for ML improve their performance the more data they have collected via software. ML tasks can be processed up to 10,000 times faster than with a classic processor.
AMD EPYC 7402	Characteristic	AMD Ryzen 9 7900
--	AI hardware	--
--	AI specifications	--

Internal Graphics The AMD EPYC 7402 or AMD Ryzen 9 7900 has integrated graphics, called iGPU for short. The iGPU uses the system's main memory as graphics memory and sits on the processor's die.
no iGPU	GPU	AMD Radeon Graphics (Raphael)
	GPU frequency	0.40 GHz
--	GPU (Turbo)	2.20 GHz
--	GPU Generation	9
	Technology	5 nm
	Max. displays	3
--	Compute units	2
--	Shader	128
No	Hardware Raytracing	No
No	Frame Generation	No
--	Max. GPU Memory	8 GB
--	DirectX Version	12

Hardware codec support A photo or video codec that is accelerated in hardware can greatly accelerate the working speed of a processor and extend the battery life of notebooks or smartphones when playing videos.
no iGPU	GPU	AMD Radeon Graphics (Raphael)
No	Codec h265 / HEVC (8 bit)	Decode / Encode
No	Codec h265 / HEVC (10 bit)	Decode / Encode
No	Codec h264	Decode / Encode
No	Codec VP9	Decode / Encode
No	Codec VP8	Decode / Encode
No	Codec AV1	Decode
No	Codec AVC	Decode / Encode
No	Codec VC-1	Decode
No	Codec JPEG	Decode / Encode

Memory & PCIe The AMD EPYC 7402 can use up to GB of memory in 8 memory channels. The maximum memory bandwidth is 51.2 GB/s. The AMD Ryzen 9 7900 supports up to 128 GB of memory in 2 memory channels and achieves a memory bandwidth of up to 83.2 GB/s.
AMD EPYC 7402	Characteristic	AMD Ryzen 9 7900
DDR4-3200	Memory	DDR5-5200
	Max. Memory	128 GB
8 (Octa Channel)	Memory channels	2 (Dual Channel)
51.2 GB/s	Max. Bandwidth	83.2 GB/s
Yes	ECC	Yes
--	L2 Cache	12.00 MB
128.00 MB	L3 Cache	64.00 MB
4.0	PCIe version	5.0
128	PCIe lanes	24
252.0 GB/s	PCIe Bandwidth	94.5 GB/s
Thermal Management The thermal design power (TDP for short) of the AMD EPYC 7402 is 180 W, while the AMD Ryzen 9 7900 has a TDP of 65 W. The TDP specifies the necessary cooling solution that is required to cool the processor sufficiently.
AMD EPYC 7402	Characteristic	AMD Ryzen 9 7900
180 W	TDP (PL1 / PBP)	65 W
--	TDP (PL2)	88 W
--	TDP up	170 W
--	TDP down	--
--	Tjunction max.	95 °C
Technical details The AMD EPYC 7402 is manufactured in 7 nm and has 128.00 MB cache. The AMD Ryzen 9 7900 is manufactured in 5 nm and has a 76.00 MB cache.
AMD EPYC 7402	Characteristic	AMD Ryzen 9 7900
7 nm	Technology	5 nm
Chiplet	Chip design	Chiplet
x86-64 (64 bit)	Instruction set (ISA)	x86-64 (64 bit)
SSE4a, SSE4.1, SSE4.2, AVX2, FMA3	ISA extensions	SSE4a, SSE4.1, SSE4.2,FMA3, AVX2, AVX512
SP3	Socket	AM5 (LGA 1718)
AMD-V, SVM	Virtualization	AMD-V, SVM
Yes	AES-NI	Yes
Windows 10, Linux	Operating systems	Windows 10, Windows 11, Linux
Q3/2019	Release date	Q1/2023
2900 $	Release price	--

show more data		show more data

AMD EPYC 7402 24C 48T @ 2.80 GHz (3.35 GHz) buy now on Amazon and save! AMD Ryzen 9 7900 12C 24T @ 3.70 GHz (5.40 GHz) buy now on Amazon and save!

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Average performance in benchmarks

⌀ Single core performance in 3 CPU benchmarks

AMD EPYC 7402 (48%)

AMD Ryzen 9 7900 (100%)

⌀ Multi core performance in 3 CPU benchmarks

AMD EPYC 7402 (91%)

AMD Ryzen 9 7900 (99%)

Geekbench 5, 64bit (Single-Core)

Geekbench 5 is a cross plattform benchmark that heavily uses the systems memory. A fast memory will push the result a lot. The single-core test only uses one CPU core, the amount of cores or hyperthreading ability doesn't count.


	AMD EPYC 7402 24C 48T @ 3.35 GHz	1055 (48%)
	AMD Ryzen 9 7900 12C 24T @ 5.40 GHz	2206 (100%)

Geekbench 5, 64bit (Multi-Core)

Geekbench 5 is a cross plattform benchmark that heavily uses the systems memory. A fast memory will push the result a lot. The multi-core test involves all CPU cores and taks a big advantage of hyperthreading.


	AMD EPYC 7402 24C 48T @ 3.20 GHz	21494 (100%)
	AMD Ryzen 9 7900 12C 24T @ 4.70 GHz	21140 (98%)

Geekbench 6 (Single-Core)

Geekbench 6 is a benchmark for modern computers, notebooks and smartphones. What is new is an optimized utilization of newer CPU architectures, e.g. based on the big.LITTLE concept and combining CPU cores of different sizes. The single-core benchmark only evaluates the performance of the fastest CPU core, the number of CPU cores in a processor is irrelevant here.


	AMD EPYC 7402 24C 48T @ 3.35 GHz	1299 (46%)
	AMD Ryzen 9 7900 12C 24T @ 5.40 GHz	2798 (100%)

Geekbench 6 (Multi-Core)

Geekbench 6 is a benchmark for modern computers, notebooks and smartphones. What is new is an optimized utilization of newer CPU architectures, e.g. based on the big.LITTLE concept and combining CPU cores of different sizes. The multi-core benchmark evaluates the performance of all of the processor's CPU cores. Virtual thread improvements such as AMD SMT or Intel's Hyper-Threading have a positive impact on the benchmark result.


	AMD EPYC 7402 24C 48T @ 3.20 GHz	12622 (75%)
	AMD Ryzen 9 7900 12C 24T @ 4.70 GHz	16832 (100%)

Cinebench R20 (Single-Core)

Cinebench R20 is the successor of Cinebench R15 and is also based on the Cinema 4 Suite. Cinema 4 is a worldwide used software to create 3D forms. The single-core test only uses one CPU core, the amount of cores or hyperthreading ability doesn't count.


	AMD EPYC 7402 24C 48T @ 3.35 GHz	391 (51%)
	AMD Ryzen 9 7900 12C 24T @ 5.40 GHz	764 (100%)

Estimated results for PassMark CPU Mark

Some of the CPUs listed below have been benchmarked by CPU-monkey. However the majority of CPUs have not been tested and the results have been estimated by a CPU-monkey’s secret proprietary formula. As such they do not accurately reflect the actual Passmark CPU mark values and are not endorsed by PassMark Software Pty Ltd.


	AMD EPYC 7402 24C 48T @ 3.20 GHz	47664 (97%)
	AMD Ryzen 9 7900 12C 24T @ 4.70 GHz	49250 (100%)

Cinebench 2024 (Single-Core)

The Cinebench 2024 benchmark is based on the Redshift rendering engine, which is also used in Maxon's 3D program Cinema 4D. The benchmark runs are each 10 minutes long to test whether the processor is limited by its heat generation.


	AMD EPYC 7402 24C 48T @ 3.35 GHz	0 (0%)
	AMD Ryzen 9 7900 12C 24T @ 5.40 GHz	116 (100%)

Cinebench 2024 (Multi-Core)

The Multi-Core test of the Cinebench 2024 benchmark uses all cpu cores to render using the Redshift rendering engine, which is also used in Maxons Cinema 4D. The benchmark run is 10 minutes long to test whether the processor is limited by its heat generation.


	AMD EPYC 7402 24C 48T @ 3.35 GHz	0 (0%)
	AMD Ryzen 9 7900 12C 24T @ 5.40 GHz	1632 (100%)

Cinebench R23 (Single-Core)

Cinebench R23 is the successor of Cinebench R20 and is also based on the Cinema 4 Suite. Cinema 4 is a worldwide used software to create 3D forms. The single-core test only uses one CPU core, the amount of cores or hyperthreading ability doesn't count.


	AMD EPYC 7402 24C 48T @ 3.35 GHz	0 (0%)
	AMD Ryzen 9 7900 12C 24T @ 5.40 GHz	1964 (100%)

Cinebench R23 (Multi-Core)

Cinebench R23 is the successor of Cinebench R20 and is also based on the Cinema 4 Suite. Cinema 4 is a worldwide used software to create 3D forms. The multi-core test involves all CPU cores and taks a big advantage of hyperthreading.


	AMD EPYC 7402 24C 48T @ 3.20 GHz	0 (0%)
	AMD Ryzen 9 7900 12C 24T @ 4.70 GHz	28905 (100%)

Cinebench R20 (Multi-Core)

Cinebench R20 is the successor of Cinebench R15 and is also based on the Cinema 4 Suite. Cinema 4 is a worldwide used software to create 3D forms. The multi-core test involves all CPU cores and taks a big advantage of hyperthreading.


	AMD EPYC 7402 24C 48T @ 3.20 GHz	0 (0%)
	AMD Ryzen 9 7900 12C 24T @ 4.70 GHz	11088 (100%)

iGPU - FP32 Performance (Single-precision GFLOPS)

The theoretical computing performance of the internal graphics unit of the processor with simple accuracy (32 bit) in GFLOPS. GFLOPS indicates how many billion floating point operations the iGPU can perform per second.


	AMD EPYC 7402 @ 0.00 GHz	0 (0%)
	AMD Ryzen 9 7900 AMD Radeon Graphics (Raphael) @ 2.20 GHz	563 (100%)

Cinebench R15 (Single-Core)

Cinebench R15 is the successor of Cinebench 11.5 and is also based on the Cinema 4 Suite. Cinema 4 is a worldwide used software to create 3D forms. The single-core test only uses one CPU core, the amount of cores or hyperthreading ability doesn't count.


	AMD EPYC 7402 24C 48T @ 3.35 GHz	0 (0%)
	AMD Ryzen 9 7900 12C 24T @ 5.40 GHz	314 (100%)

Cinebench R15 (Multi-Core)

Cinebench R15 is the successor of Cinebench 11.5 and is also based on the Cinema 4 Suite. Cinema 4 is a worldwide used software to create 3D forms. The multi-core test involves all CPU cores and taks a big advantage of hyperthreading.


	AMD EPYC 7402 24C 48T @ 3.20 GHz	0 (0%)
	AMD Ryzen 9 7900 12C 24T @ 4.70 GHz	4796 (100%)

CPU performance per watt (efficiency)

Efficiency of the processor under full load in the Cinebench R23 (multi-core) benchmark. The benchmark result is divided by the average energy required (CPU package power in watts). The higher the value, the more efficient the CPU is under full load.


	AMD EPYC 7402 2.80 GHz	0 (0%)
	AMD Ryzen 9 7900 28,905 CB R23 MC @ 90 W	321 (100%)

Devices using this processor
AMD EPYC 7402	AMD Ryzen 9 7900
Unknown	Unknown

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